Arbitrage in a discrete version of the Wick-fractional Black–Scholes market

Arbitrage in a discrete version of the Wick-fractional Black–Scholes market

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Article ID: iaor20072160
Country: United States
Volume: 29
Issue: 4
Start Page Number: 935
End Page Number: 945
Publication Date: Nov 2004
Journal: Mathematics of Operations Research
Authors: ,
Keywords: Arbitrage, Black-Scholes
Abstract:

We consider binary market models based on the discrete Wick product instead of the pathwise product and provide a sufficient criterion for the existence of an arbitrage. This arbitrage is explicitly constructed in the class of self-financing one-step buy-and-hold strategies, (i.e., the investor holds shares of the stock only at one time step). Using coefficients obtained from an approximation of a fractional Brownian motion with Hurst parameter ½<H<1 the result is applied to a discrete version of the (Wick-)fractional Black–Scholes market.

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